/Engine/Source/Runtime/AudioMixer/Public/AudioMixerBlueprintLibrary.h
Removes the submix effect at the given submix chain index, if there is a submix effect at that index.
static void RemoveSubmixEffectAtIndex ( const [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContextObject, [USoundSubmix](API\Runtime\Engine\Sound\USoundSubmix) * SoundSubmix, int32 SubmixChainIndex )